8681540 has 24 divisors (see below), whose sum is σ = 20836032. Its totient is φ = 2976480.

The previous prime is 8681539. The next prime is 8681549. The reversal of 8681540 is 451868.

It is a junction number, because it is equal to n+sod(n) for n = 8681497 and 8681506.

It is not an unprimeable number, because it can be changed into a prime (8681549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30866 + ... + 31145.

It is an arithmetic number, because the mean of its divisors is an integer number (868168).

Almost surely, 2^8681540 is an apocalyptic number.

It is an amenable number.

8681540 is an abundant number, since it is smaller than the sum of its proper divisors (12154492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8681540 is a wasteful number, since it uses less digits than its factorization.

8681540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62027 (or 62025 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 8681540 is about 2946.4453159697. The cubic root of 8681540 is about 205.5254416833.

The spelling of 8681540 in words is "eight million, six hundred eighty-one thousand, five hundred forty".